Temporal Motion Vector Filtering
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United States of America Patent
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Issued Date -
Feb 27, 2014
app pub date -
Oct 29, 2013
filing date -
Dec 23, 2003
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus, including computer program products, implementing and using techniques for performing temporal motion vector filtering in digital video are disclosed. A recursive hierarchical process is used to determine a motion vector. In the recursive hierarchical process, a neighborhood of old motion vectors is filtered to generate a first estimated motion vector for an image patch in a pair of two image frames. The filtering process uses multiple vectors in a neighborhood around the old motion vector to improve the prediction of the first estimated motion vector. The temporal vector partitioning process separates motion vectors associated with an object from motion vectors associated with a background before selecting a best motion vector, which improves the selection process.
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